CN1285660C - Potential hardening agent, producing process and binder thereof - Google Patents
Potential hardening agent, producing process and binder thereof Download PDFInfo
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- CN1285660C CN1285660C CN 02151802 CN02151802A CN1285660C CN 1285660 C CN1285660 C CN 1285660C CN 02151802 CN02151802 CN 02151802 CN 02151802 A CN02151802 A CN 02151802A CN 1285660 C CN1285660 C CN 1285660C
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
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- H01L2924/01013—Aluminum [Al]
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Abstract
The present invention relates to an adhesive agent which has high preservability and can be hardened within a short time at low temperature. A potentiality stiffening agent 30 has stiffening agent particles 31 using metal chelate as a main component and capsules 33 coated on the surfaces of the stiffening agent particles 31, and on the surfaces of the stiffening agent particles 31, substituent groups forming resin parts of the capsules 33 are combined with the metal chelate. Thus, because the mechanical strength of the capsules 33 is high, in the mixing process of the potentiality stiffening agent 30 and epoxy resin, the capsules 33 can not be destroyed.
Description
Technical field
The present invention relates to caking agent, particularly by thermo-compressed with the potentiality stiffening agent that uses in semi-conductor chip and TCP and the caking agent that substrate is connected.
Background technology
For many years, when semi-conductor chip is connected with substrate with TCP (Tape Carrler Package) is connected with LCD (Liquid Crystal Display), when making electric installation, is using the caking agent contain as the Resins, epoxy of thermosetting resin.
In the following squish lip heating of this state, then caking agent 125 is softening, and metal line 117 is pressed in the caking agent 125 that has softened, and contacts with ITO electrode 113 surfaces.
In above-mentioned caking agent, the general stiffening agent that makes imidazoles one class of polymerization of epoxy resins with heating that adds is under metal line 117 and ITO electrode 113 state of contact, when continuing heating, be subjected to the katalysis of stiffening agent, Resins, epoxy carries out polymerization, and caking agent 125 forms sclerosis.
Electric installation among Fig. 7 (c) under symbol 101 expression caking agents 125 hardening states.In this electric installation 101, under metal line 117 and ITO electrode 113 contact conditions, make TCP 115 and LCD 111 fixing by hardened caking agent 125, therefore, TCP 115 and LCD 111 be electrical connection also be mechanical connection.
Yet when making above-mentioned adhesive hardens, caking agent must be heated to the high temperature more than 180 ℃, when the pattern of metal line 117 is trickle, during heating, makes TCP 115 take place to stretch sometimes and distortion such as bending.Can eliminate this type of problem though reduce Heating temperature, heat treated needs long time, and production efficiency reduces.
As the good caking agent of hardening under the low temperature, in recent years, contain as the radical polymerization resin of acrylate one class and the caking agent of free radical polymerization initiator, compare when caking agent is with use Resins, epoxy like this though developed, under hardening state, electrical characteristic and thermotolerance are all very poor.
Summary of the invention
The present invention develops for solving above-mentioned the deficiencies in the prior art part, its objective is provide a kind of under the condition of low temperature, short period of time hardenable and caking agent that keeping quality is good.
Inventors of the present invention are conceived to not use the stiffening agent of general use and make Resins, epoxy carry out the way of cationoid polymerisation, through further investigation, found that, add silane compound (silane coupling agent) and the metallo-chelate (or metal alkoxide) that has a kind of alkoxyl group in the structure at least in caking agent, the positively charged ion that produces during by metallo-chelate and silane coupling agent reaction makes the method for polymerization of epoxy resins (cationoid polymerisation).
Use following reaction formula (1)～(4) that the process that makes epoxy cure with the caking agent that has added metallo-chelate and silane coupling agent is described.
[changing 1]
Reaction formula (1)
Reaction formula (2)
Reaction formula (3)
Reaction formula (4)
At least the silane compound that has an alkoxyl group, shown in reaction formula (1), with the water reaction in the caking agent, alkoxyl group is hydrolyzed, and forms silanol group.
When the caking agent, silanol group with such as the reaction of the metallo-chelate of aluminum chelate, silane compound is combined on the aluminum chelate.(reaction formula (2)).
Then, shown in reaction formula (3), combining on the aluminum chelate of silanol group, by with balanced reaction in remain in other silanol group coordinations in the caking agent, produce this cautious sour point of Boulogne, shown in reaction formula (4), the proton of sensitization will be positioned at the oxirane ring of Resins, epoxy end to be opened, with the oxirane ring polymerization (cationoid polymerisation) of other Resins, epoxy.Like this, when adding to silane coupling agent and metallo-chelate in the caking agent, carry out cationoid polymerisation such as the thermosetting resin of Resins, epoxy.Reaction shown in reaction formula (2)～(4) and since than before the low temperature of adhesive hardens temperature (more than 180 ℃) carry out, so such caking agent and former comparing at low temperatures, can harden in the short period of time.
Yet, when metallo-chelate and metal alkoxide directly are dispersed in the tackiness agent with silane coupling agent, because Resins, epoxy at normal temperatures also can polyreaction, so keeping quality is poor.If metallo-chelate is enclosed in the capsule, form so-called potentiality stiffening agent, though improved the keeping quality of caking agent,, when capsular physical strength is very weak, with the potentiality stiffening agent in Resins, epoxy in the dispersive process, capsule is destroyed sometimes.
Present inventors are to improving the method for capsule physical strength, done more deep research, found that, when use has substituent resinous principle formation such as hydroxyl, carboxyl capsule, surface portion metallo-chelate at the stiffening agent particle combines with this substituting group, improve capsular physical strength, thereby obtained the strong potentiality stiffening agent of anti-physical impact.
The present invention makes according to above-mentioned opinion, so provide by the 1st kind of embodiment of the present invention and to have stiffening agent particle and lining this stiffening agent particle surface capsular potentiality stiffening agent, above-mentioned stiffening agent particle is as main component with any in metallo-chelate or the metal alkoxide or two kinds, above-mentioned capsule is to have any or two kinds of substituent resinous principles in hydroxyl or the carboxyl, at the surface portion of above-mentioned stiffening agent particle, the above-mentioned substituting group of above-mentioned resinous principle and the reaction of above-mentioned metallo-chelate.
Provide the potentiality stiffening agent by the 2nd kind of embodiment of the present invention, it is characterized by in the potentiality stiffening agent of the 1st kind of scheme record, above-mentioned metallo-chelate is main component with the aluminum chelate.
Provide the potentiality stiffening agent by the 3rd kind of embodiment of the present invention, it is characterized by in the potentiality stiffening agent of the 1st kind of scheme record, above-mentioned metal alkoxide is main component with the aluminium-alcohol salt.
Provide the potentiality stiffening agent by the 4th kind of embodiment of the present invention, it is characterized by in the potentiality stiffening agent of the 1st kind of scheme record, above-mentioned resinous principle is main component with the polyvinyl alcohol.
By the 5th kind of embodiment of the present invention is the manufacture method of potentiality stiffening agent, it is to make the potentiality stiffening agent manufacture method that stiffening agent particle and the capsular potentiality stiffening agent of this stiffening agent particle surface of lining are arranged, comprising following operation: promptly, make by the capsule material manufacturing process that has in hydroxyl or the carboxyl any or two kinds of substituent resinous principle powder shaped capsule materials that form, that median size is littler than above-mentioned stiffening agent average particle size; With make above-mentioned capsule material attached on last this stiffening agent particle surface, the above-mentioned capsule material of fusion under attached to the lip-deep state of above-mentioned stiffening agent forms above-mentioned capsular encapsulated operation.
By the 6th kind of embodiment of the present invention is potentiality stiffening agent manufacture method, it is characterized by in the potentiality stiffening agent manufacture method of the 5th kind of embodiment record, above-mentioned encapsulated operation has following operation: promptly, above-mentioned stiffening agent particle and above-mentioned capsule material are mixed, make the mixed processes of above-mentioned capsule material attached to above-mentioned stiffening agent particle; With the above-mentioned stiffening agent particle that has adhered to above-mentioned capsule material is stirred, make above-mentioned capsule material fused agitating procedure.
The 7th kind of embodiment of the present invention is potentiality stiffening agent manufacture method, it is characterized by the 5th or 6 kind of embodiment in the potentiality stiffening agent manufacture method of each record, the median size of above-mentioned stiffening agent particle to the ratio of the median size of above-mentioned capsule material more than 100: 80.
By the 8th kind of embodiment of the present invention is potentiality stiffening agent manufacture method, it is characterized by the 5th or 6 kind of embodiment in the potentiality stiffening agent manufacture method of each record, the median size of above-mentioned stiffening agent particle to the ratio of the median size of above-mentioned capsule material more than 100: 50.
The 9th kind of embodiment of the present invention is potentiality stiffening agent manufacture method, it is characterized by in the potentiality stiffening agent manufacture method of the 5th kind of embodiment record, form above-mentioned capsule after, above-mentioned capsule and above-mentioned stiffening agent particle are heated.
The 10th kind of embodiment of the present invention is a kind of caking agent, is the caking agent with potentiality stiffening agent of each record in thermosetting resin, silane coupling agent and the embodiment 1～4.
The present invention is as above-mentioned formation, and with powder shaped capsule material and stiffening agent mix particles, stirring, the capsule material electrostatic adhesion is on the stiffening agent particle surface.The stiffening agent particle of this state of high-speed stirring, capsule material carries out fusion with electrostatic adhesion under the state on the stiffening agent particle surface, the integrated formation capsule of capsule material (encapsulated).
The substituting group of resinous principle is to the reactivity of stiffening agent particle when high especially, in encapsulated operation, the metallo-chelate or the metal alkoxide of the substituting group of resinous principle and stiffening agent particle surface react, and this substituting group combines with the central metal of metallo-chelate or metal alkoxide.
The substituting group of resinous principle, after encapsulated process, heats stiffening agent particle and capsule when very low together to the reactivity of stiffening agent particle, and the metallo-chelate or the metal alkoxide of this substituting group and stiffening agent particle surface can react.
Following reaction formula (5) shows respectively aluminum chelate when the metallo-chelate, the substituting group of resinous principle and the association reaction of this aluminum chelate.
[changing 2]
Reaction formula (5)
Above-mentioned reaction formula (5) shows aluminum chelate and hydroxyl bonded situation, detaches proton (hydrogen atom) from hydroxyl, forms with aluminium to combine.When substituting group was carboxyl, the hydroxyl in the carboxyl carried out and the identical reaction of above-mentioned reaction formula (5), formed with aluminium to combine.
As above-mentioned, in potentiality stiffening agent of the present invention, combine with metallo-chelate at the stiffening agent particle surface owing to constitute the substituting group of capsular resinous principle, so capsular physical strength is very high.Therefore, in the caking agent manufacturing process that potentiality stiffening agent of the present invention is dispersed in the Resins, epoxy, capsule is subjected to physical impact and can be damaged.
With above-mentioned potentiality stiffening agent, silane coupling agent and Resins, epoxy mixing manufacture caking agent the time, under the normal temperature, because powder shaped stiffening agent particle surface is all covered by capsule, so Resins, epoxy can not cause polyreaction, but when caking agent is heated, constitute the metallo-chelate expanded by heating of stiffening agent particle, make capsules break.
Work as capsules break, the stiffening agent particle mixes with Resins, epoxy and silane coupling agent in the caking agent, constitute the metallo-chelate and the silane coupling agent reaction of stiffening agent particle, in caking agent, discharge positively charged ion, this positively charged ion makes the polyreaction of Resins, epoxy sharply carry out (cationoid polymerisation), adhesive hardens as a result.
When the average particle size of stiffening agent particle is too small, become very little with the particle diameter difference of capsule material, capsule is difficult to form, so the median size of stiffening agent particle is preferably below the above 50 μ m of 0.5 μ m.
In mixed processes and agitating procedure, can use to have stiffening agent particle and capsule material are carried out the blended mixing device and adhering to the hybridization mixer apparatus (for example, nara machinery is made the trade(brand)name " NHS-0 " of society of institute's (strain) system) that stirs the whipping appts of stiffening agent particle under the capsule material state.At this moment, the cooperation ratio of stiffening agent particle and capsule material can be obtained by following formula (1).
Formula (1) M/m=D * F/ (4 * d * f)
In the above-mentioned formula (1):
M represents the use level (g) of stiffening agent particle
M represents the use level (g) of capsule material
D represents the median size (μ m) of powder shaped stiffening agent particle
D represents the median size (μ m) of capsule material
F represents the proportion of stiffening agent particle
F represents the proportion of capsule material
So-called proportion is represented the ratio of the density of each material to the density of 4 ℃ of water of reference material.Yet following formula (1) is theoretical formula, and the best fit ratio of stiffening agent particle and capsule material should be determined as the case may be.
If add thermoplastic resin in caking agent, the character of thermoplastic resin can increase the cohesive force of caking agent, so the cementability of caking agent can be higher.When using high polar resin as thermoplastic resin, thermoplastic resin not only is combined in the sclerous reaction of Resins, epoxy, and combine with inorganic materials by silane coupling agent, not only improved the hardening of caking agent, and improved with form by inorganic materials by the affinity of adhesives.
Description of drawings
Fig. 1 (a)～(c) is the routine explanatory view that the present invention makes potentiality stiffening agent operation.
Fig. 2 (a) and (b) are to use caking agent of the present invention to make a routine explanatory view of bonding membrane process.
Fig. 3 (a)～(d) is to use caking agent of the present invention to connect the explanatory view of preceding half operation of LCD and TCP.
Fig. 4 (e), (f) are the explanatory views that connects the later half operation of TCP and LCD.
Fig. 5 makes TCP close plane explanatory view to state at the enterprising line position of LCD.
Fig. 6 (a)～(c) is to use caking agent of the present invention to connect another routine explanatory view of TCP and LCD operation.
Fig. 7 (a)～(c) is to use the caking agent of prior art to connect the explanatory view of preceding half operation of LCD and TCP.
The explanation of symbol
20,45 ... caking agent (coating layer)
30 ... the potentiality stiffening agent
31 ... the stiffening agent particle
32 ... capsule material
33 ... capsule
The working of an invention form
Below the present invention is made the potentiality stiffening agent operation describe.
At first, preparation has any or two kinds of substituent resinous principles in hydroxyl or the carboxyl, this resinous principle is dispersed in the solvent, after making resin solution, with spray drying unit above-mentioned resin solution is carried out spraying drying, obtain powder shaped resinous principle (capsule material) (spray-drying process).
Then, prepare aluminum chelate powder as metallo-chelate with this as the stiffening agent particle.Symbol 31 its stiffening agent particles of expression among Fig. 1 (a), the median size of stiffening agent particle is taken as more than 100: 80 the ratio of the median size of above-mentioned capsule material.
Then, stiffening agent particle 31 and capsule material are mixed with the cooperation ratio of regulation, when in mixing device, stirring, median size than the little capsule material electrostatic adhesion of stiffening agent particle 31 on stiffening agent particle 31 surfaces (mixed processes).
The capsule material of symbol 32 these states of expression among Fig. 1 (b), the surface of a stiffening agent particle 31 is covered by a lot of capsule materials 32.
The stiffening agent particle 31 that surface electrostatic has been adhered to capsule material 32 is packed in the whipping appts, with high-speed stirring, the capsule material 32 on stiffening agent particle 31 surfaces bumps or rubs with the capsule material 32 on other stiffening agent particle 31 surfaces and rotating paddle, the inwall of whipping appts, make capsule material 32 form molten by the heat that produces, fused capsule material 32 forms an integral body (agitating procedure) each other.
At this moment, fusion capsule material 32 and stiffening agent particle 31 surface contacts, the substituting group that constitutes the resinous principle of capsule material 32 combines with the metallo-chelate that stiffening agent glues sub 31 surface portions.
The substituting group of the resinous principle of capsule material 32 constantly reacts by contacting with metallo-chelate, and during the potentiality stiffening agent 30 of capsule 33 that added thermosetting, this substituting group and metal chelator react rapidly.
Below the caking agent of the present invention that uses above-mentioned potentiality stiffening agent 30 and the operation of using caking agent of the present invention to make electric installation are described.
Cooperation ratio with regulation will be made caking agent as the Resins, epoxy and thermoplastic resin, silane coupling agent, above-mentioned potentiality stiffening agent 30, electroconductive particle and solvent mixing stirring of thermosetting resin.Under this state, caking agent is a pasty state.Because capsule 33 physical strengths of potentiality stiffening agent 30 are very high, so capsule 33 can be not damaged in whipping process.
The bonding film of symbol 20 expressions formation coating layer 25 among Fig. 2 (b).Be dispersed in electroconductive particle in the caking agent with symbol among the figure 27 expression with potentiality stiffening agent 30.Under this state, the stiffening agent particle 31 of potentiality stiffening agent 30 is encapsulated in the capsule 33, owing to silane coupling agent and stiffening agent particle 31 in the caking agent that constitutes coating layer 25 do not contact, so can not cause the sclerous reaction of coating layer 25 under the normal temperature.
In the face of the formation ITO electrode 13 of LCD 11, with the coating layer 25 and the part crimping that is connected following TCP (Fig. 3 (b)) of the bonding film 20 shown in Fig. 2 (b).Because the bonding force of stripping film 21 and coating layer 25 is less than the bonding force of coating layer 25 and ITO electrode 13, so when peeling off stripping film 21, coating layer 25 can not remain in (Fig. 3 (c)) on the LCD 11.
A-A line place sectional view in Fig. 3 (d) presentation graphs 5, make the TCP 15 that disposed metal line 17 towards the configuration of LCD 11 face of ITO electrode 13, make the coating layer 25 on the end of TCP 15 and ITO electrode 13 surfaces opposed, it is right that the ITO electrode 13 that makes LCD 11 and the metal line 17 of TCP 15 relatively close mutually.
Under this state, with the configuration of TCP 15 face of metal line 17 be crimped on the coating layer 25, the intersection of limit extruding TCP 15 and LCD 11, heat integral body on the limit, make coating 25 softening by heating, by extruding, metal is joined cloth 17 and is pressed in the remollescent coating layer 25, and the electroconductive particle 27 in the residual coating layer 25 is clipped in (Fig. 4 (e)) between metal line 17 and the IT electrode 13.
Under this state, continue to add hot extrusion, stiffening agent particle 31 expanded by heating break capsule 33.After capsule 33 breaks, stiffening agent particle 31 mixes with Resins, epoxy and silane coupling agent in the coating layer 25, constitute the aluminum chelate and the silane coupling agent reaction of stiffening agent particle 31, in coating layer 25, discharge positively charged ion, this positively charged ion make Resins, epoxy carry out rapid polyreaction (cationoid polymerisation), under the state of metal line 17 and ITO electrode 13 clamping electroconductive particles 27, coating layer sclerosis (Fig. 4 (f)).
Electric installation among Fig. 4 (f) after 25 sclerosis of symbol 10 expression coating layers.In this electric installation 10, metal line 17 and ITO electrode 13 not only are electrically connected by electroconductive particle 27, and LCD 11 and TCP 15 also carry out mechanical connection by hardened coating layer 25.
As above-mentioned, caking agent of the present invention not only keeping quality is good, and because cationoid polymerisation makes epoxy cure, compares with the stiffening agent before using, and caking agent hardens in the short period of time at low temperatures.
" embodiment "
10 weight parts are dissolved in 90 weight parts waters by the resinous principle that polyvinyl alcohol (trade(brand)name " PVA 205 " of Network ラ レ (strain) society system) constitutes, are made into the resinous principle aqueous solution of 10 weight %.Then, from nozzle with the resinous principle aqueous solution of 10 weight % to nitrogen (160 ℃ of temperature), spray, drying, be made into the capsule material 32 (median size 0.8 μ m) (spray-drying process) of powder shaped.
As stiffening agent particle 31, prepare respectively as the aluminum chelate of metallo-chelate pulverizing micro mist (the aluminium triacetyl acetate of Off ア イ Application ケ ミ カ Le (strain) society system is ground in the river) and as the pulverizing micro mist (the aluminium isopropyl acid salt of Off ア イ Application ケ ミ カ Le (strain) society system is ground in the river) of the aluminium-alcohol salt of metal alkoxide.The median size of these 2 kinds of stiffening agent particles 31 is respectively 5 μ m.Therefore, the median size of stiffening agent particle 31 is 5: 0.8 to the ratio of the median size of capsule material 32.
Then, use nara machinery to make the trade(brand)name " hybridization type mixing tank-NHS-0 " of society of institute's (strain) system, in above-mentioned Fig. 1 (a) and (b) operation, make capsule material 32 electrostatic adhesion behind stiffening agent particle 31 surfaces, under the operating condition in rotating speed 16200rpm (peripheral speed 100m/ second), 5 minutes treatment times, stir, form capsule 33, obtain 2 kinds of potentiality stiffening agents 30 after, these potentiality stiffening agents 30 are heated under 40 ℃, 48 hours condition.
Cooperation ratio shown in the according to the form below 1, cooperate this 2 kinds of potentiality stiffening agents 30, phenoxy resin (trade(brand)name " PKHH " of Off ユ ノ キ シ ア ソ シ エ-Star (strain) society system) as thermoplastic resin, the bisphenol A type epoxy resin of thermosetting resin (trade(brand)name " EP828 " of oiling シ ユ Le エ ボ キ シ (strain) society system), silane coupling agent (trade(brand)name " A-187 " of Japanese ユ ニ カ-(strain) society system) and electroconductive particle, be made into 2 kinds of pasty state caking agents, use these caking agents, by above-mentioned Fig. 2 (a), (b) operation is made the bonding film 20 of embodiment 1,2.
Table 1
Table 1: the composition of caking agent
| The composition of caking agent | Embodiment 1 | Embodiment 2 | Comparative example 1 | Comparative example 2 |
| Phenoxy resin | 50 | 50 | 50 | 50 |
| Bisphenol A type epoxy resin | 50 | 50 | 50 | 50 |
| Potentiality stiffening agent A | 1 | - | - | - |
| Potentiality stiffening agent B | - | 1 | - | - |
| Aluminium triacetyl acetate | - | - | 1 | - |
| Aluminium isopropyl acid salt | - | - | - | 1 |
| Silane coupling agent | 1 | 1 | 1 | 1 |
| Electroconductive particle | 5 | 5 | 5 | 5 |
*Potentiality stiffening agent A: aluminium triacetyl acetate+capsule
*Potentiality stiffening agent B: aluminium isopropyl acid salt+capsule
*Numerical value in the last note table is represented with weight part respectively
Comparative example the 1, the 2nd in the above-mentioned table 1,2 kinds of stiffening agent particles with using among the embodiment 1,2 add the situation in the caking agent under not forming capsule.
Use the bonding film 20 of these embodiment 1,2 and comparative example 1,2, carry out following " room temperature preservation test " and " preserving test for 40 ℃ " respectively.
[room temperature preservation test]
Use the bonding film 20 of embodiment 1,2 and comparative example 1,2, according to the operation of above-mentioned Fig. 3 (a)～(d), Fig. 4 (e), (f), with TCP 15 with after LCD 11 is connected, the stripping strength (initial stage stripping strength) of mensuration when LCD 11 peels off TCP15.
In addition, the bonding film 20 of embodiment 1,2 and comparative example 1,2 was preserved respectively 1 day, 3 days, 7 days under room temperature (25 ℃), use each the bonding film 20 after preserving, press and above-mentioned identical operation, respectively with TCP 15 with after LCD 11 is connected, measure the stripping strength (stripping strength after the preservation) when LCD 11 peels off TCP 15 respectively.
[preserving test for 40 ℃]
Except the temperature that will preserve bonding film 20 becomes 40 ℃ from room temperature, under the condition identical, preserve bonding film 20 with above-mentioned " room temperature preservation test ", TCP 15 with after LCD 11 is connected, is measured the stripping strength after the preservation.
In above-mentioned " room temperature preservation test " and " preserving test for 40 ℃ ", the size of preserving the back stripping strength is 90% when above of stripping strength size in the early stage, be evaluated as " ◎ ", more than 80% less than being evaluated as " zero " at 90% o'clock, more than 70% less than 80% o'clock, be evaluated as " △ ", be evaluated as during less than 70% " * ", its evaluation result is as shown in table 2 below.
Table 2
Table 2: the result of evaluation test
| Room temperature preservation | 40 ℃ of preservations | |||||
| 1 day | 3 days | 7 days | 1 day | 3 days | 7 days | |
| Embodiment 1 | ◎ | ◎ | ◎ | ◎ | ◎ | ◎ |
| Embodiment 2 | ◎ | ◎ | ◎ | ◎ | ◎ | ○ |
| Comparative example 1 | ○ | △ | × | × | × | × |
| Comparative example 2 | - | - | - | - | - | - |
*-: adhesive hardens in the manufacturing process of bonding film.
Herein, the TCP that has used with 25 μ m arranged spaced the wide metal line 17 of 25 μ m uses to have formed every 1cm as TCP15
2The sheet resistance of surface-area be the LCD of ITO electrode 13 of 10 Ω as LCD11, on one side TCP 15 and LCD 11 intersection are applied the 3MPa loading, heated for 10 seconds on one side, make coating layer 25 be warmed up to 130 ℃, connect.
As above-mentioned table 1,2 clear and definite, in using the embodiment 1,2 that stiffening agent particle 31 is enclosed in the capsule 33, the evaluation result of " room temperature preservation test ", " preserving test for 40 ℃ " is all fine, can confirm to have used the caking agent keeping quality of potentiality stiffening agent of the present invention good.
On the other hand, added the comparative example of the stiffening agent particle not being enclosed in the capsule 1,2 in caking agent, compared with the situation of embodiment 1,2, the evaluation result in the Total Test is all very poor.Particularly, in the comparative example 2 that has used hyperergy aluminium-alcohol salt (aluminium isopropyl acid salt), in the operation of making caking agent and bonding film, Resins, epoxy carries out polyreaction, because the viscosity of caking agent is too high, self can not be made into bonding film.
Though more than the situation of using caking agent to make bonding film is described, the present invention is not limited to this, for example, also caking agent directly can be used with pasty state.
Then, by the operation of above-mentioned Fig. 3 (d), make the position of TCP 15 close to after, when TCP 15 being connected with LCD 11, obtain electric installation 40 (Fig. 6 (c)) by the operation of above-mentioned Fig. 4 (e), (f).
Though more than to using caking agent that TCP 15 is described with the situation that LCD 11 is connected, the present invention is not limited to this, the situation of the various electric installations of manufacturing such as also can be used on when substrate is connected with semi-conductor chip.
For the electroconductive particle in the caking agent of the present invention 27, can use various electroconductive particles.Though more than the situation that electroconductive particle is dispersed in the caking agent is described, the present invention is not limited to this, for example, the caking agent that does not contain electroconductive particle is also included among the present invention.
As metallo-chelate, can use various metallo-chelates such as zirconium chelate, titanium chelate, aluminum chelate, but in these, more preferably use reactive high aluminum chelate.
Above as resinous principle, though the situation of using polyvinyl alcohol is described, but the present invention is not limited to this, so long as have the substituent just passable of hydroxyl, carboxyl etc. and metallo-chelate and metal alkoxide reaction, can use various resinous principles, for example can use various resins such as phenoxy resin, ammonia ester resin, vibrin.
After forming capsule 33, the Heating temperature during heating potentiality stiffening agent 30 also is not limited to 40 ℃, and Heating temperature is too high, and capsule 33 breakages are so Heating temperature is preferably below the glass tansition temperature of resinous principle.
As thermosetting resin, except Resins, epoxy, can use various resins such as urea resin, melamine resin, phenol resins, vinyl ether resin, oxetane resin, but when considering the intensity etc. of caking agent after the heat embrittlement, preferably use Resins, epoxy.
As the silane coupling agent that uses among the present invention, preferably use following formula (6) to represent.
[changing 3]
(in the above-mentioned formula (6), substituent X
1-X
4In, at least one substituting group is an alkoxyl group.The preferred methoxy or ethoxy of this alkoxyl group.Substituent X except alkoxyl group
1～X
4In, preferably at least one substituting group has oxirane ring or vinyl, and particularly, the substituting group that more preferably has oxirane ring is a glycidyl.As substituting group, for example be methacrylic oxygen propyl group (メ Network リ ロ キ シ プ ロ ピ Le base) with vinyl.As substituting group, for example be the glycidoxy propyl group with glycidyl.It also can be substituent X
1～X
4It all is the so-called silicon ester that forms by alkoxyl group.)
As thermoplastic resin, except phenoxy resin, for example can use rubber-like such as vibrin, urethane resin, polyvinyl acetal, ethylene vinyl acetate, polybutadiene rubber, or the like.
The invention effect
Bonding dose of the present invention, not only improved bonding dose keeping quality, at the surface portion of curing agent particle, the substituting group that consists of the resin composition of capsule combines with the main component metal chelating compound of curing agent particle. Therefore, the mechanical intensity of capsule is very high, and the anti-physical impact of potentiality curing agent is very high.
Claims (10)
1, a kind of potentiality stiffening agent has the stiffening agent particle and the capsule of this stiffening agent particle surface that is covered, it is characterized in that,
Above-mentioned stiffening agent particle with metallo-chelate or metal alkoxide any one or both as main component,
Above-mentioned capsule have in hydroxyl or the carboxyl any one or both substituent resinous principle,
At the surface portion of above-mentioned stiffening agent particle, the substituting group of above-mentioned resinous principle and the reaction of above-mentioned metallo-chelate.
2, according to the potentiality stiffening agent of claim 1 record, it is characterized in that described metallo-chelate is main component with the aluminum chelate.
3, according to the potentiality stiffening agent of claim 1 record, it is characterized in that described metal alkoxide is main component with the aluminium-alcohol salt.
4, according to the potentiality stiffening agent of claim 1 record, it is characterized in that described resinous principle is main component with the polyvinyl alcohol.
5, the manufacture method of potentiality stiffening agent, manufacturing has the capsular potentiality stiffening agent of stiffening agent particle and this stiffening agent particle surface of lining, it is characterized in that, comprise following operation, promptly, manufacturing is by having in hydroxyl or the carboxyl any or two kinds of substituent resinous principles form, the capsule material manufacturing process of the powder shaped capsule material that median size is littler than above-mentioned stiffening agent average particle size, with make above-mentioned capsule material attached on the above-mentioned stiffening agent particle surface, the above-mentioned capsule material of fusion under attached to the lip-deep state of above-mentioned stiffening agent forms above-mentioned capsular encapsulated operation.
6, according to the manufacture method of the potentiality stiffening agent of claim 5 record, it is characterized in that described encapsulated operation comprises following operation, promptly, above-mentioned stiffening agent particle and above-mentioned capsule material are mixed, make above-mentioned capsule material stir, make above-mentioned capsule material fused agitating procedure attached to the mixed processes on the above-mentioned stiffening agent particle surface with to the above-mentioned stiffening agent particle that adheres to above-mentioned capsule material.
7, according to the manufacture method of the potentiality stiffening agent of each record in claim 5 or 6, the median size that it is characterized in that above-mentioned stiffening agent particle is more than 100: 80 to the ratio of the median size of capsule material.
8, according to the manufacture method of the potentiality stiffening agent of each record in claim 5 or 6, the median size that it is characterized in that above-mentioned stiffening agent particle is more than 100: 50 to the ratio of the median size of capsule material.
9, according to the manufacture method of the potentiality stiffening agent of claim 5 record, it is characterized in that forming above-mentioned capsule after, capsule and stiffening agent particle are heated.
10, a kind of caking agent is characterized in that having the potentiality stiffening agent of each record in thermosetting resin, silane coupling agent and the claim 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02151802 CN1285660C (en) | 2002-12-05 | 2002-12-05 | Potential hardening agent, producing process and binder thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02151802 CN1285660C (en) | 2002-12-05 | 2002-12-05 | Potential hardening agent, producing process and binder thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1506428A CN1506428A (en) | 2004-06-23 |
| CN1285660C true CN1285660C (en) | 2006-11-22 |
Family
ID=34234519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02151802 Expired - Lifetime CN1285660C (en) | 2002-12-05 | 2002-12-05 | Potential hardening agent, producing process and binder thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1285660C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4811555B2 (en) * | 2005-01-12 | 2011-11-09 | ソニーケミカル＆インフォメーションデバイス株式会社 | Latent curing agent |
| JP5267757B2 (en) * | 2006-02-07 | 2013-08-21 | デクセリアルズ株式会社 | Latent curing agent |
| US9751283B2 (en) * | 2011-09-28 | 2017-09-05 | Jfe Steel Corporation | Resin-coated metal sheet for containers |
-
2002
- 2002-12-05 CN CN 02151802 patent/CN1285660C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1506428A (en) | 2004-06-23 |
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